January Weather in Castletown

Last updated: March 2, 2024

The weather in Castletown, Isle of Man, during January is characterized by an average temperature of 8°C (46°F). Highs can soar to 11°C (53°F), while lows may dip to 4°C (39°F). Typically, the humidity level in Castletown throughout January hovers around 89%.

4°C (39°F)

Minimum temperature

8°C (46°F)

Average temperature

11°C (53°F)

Maximum temperature

89%

Humidity

Precipitation and Sunshine hours

In January, Castletown averages 81 mm (3.2 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 8 hours 0 minutes of daylight, with the sun shining for approximately 2 hours 54 minutes each day. Additionally, there is a 28% probability of sunny days during this period.

81 mm (3.2 inches)

Precipitation

14 rainy days

Rainy days

2 hours 54 minutes

Sunshine hours

28%

Chance of sun

UV Index

In January, the UV Index in Castletown reaches a maximum of 1, indicating a level of Low exposure. The most intense UV radiation typically occurs between 09:00 and 11:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 0 1 1 1 1 1 1 1 1 0 0 0
Exposure Low
Time to burn 45 min

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